Security analysis of stealth transmission over a public fiber-optical network

Glesk, I. (2007) Security analysis of stealth transmission over a public fiber-optical network. In: Security Issues in Optical Networking (CThBB), 2007-06-06.

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Abstract

We recently proposed a method [1], for performing secure stealth transmission over a public fiber-optical network by overlaying a secure channel to an existing network. The secure channel has identical spectrum as the public network, and is optically encoded and time spread by OCDMA techniques resulting in signals having average power below the noise floor in the fiber. This approach provides an extra depth of security namely steganography [2], by concealing the secure transmission under the noise floor of the network and preventing hostile detection by eavesdropper. In this paper we analyze the security of such stealth transmission.